Friday, June 12, 2026
ComponentsPower Semiconductors

FZ600R65KF2: Infineon 6.5kV 600A Single IGBT Module Overview and Specifications

FZ600R65KF2 | Infineon 6.5kV 600A Single IGBT Module

The FZ600R65KF2 is an industry-standard 6500V, 600A single IGBT module designed to handle high power density and provide robust insulation. Engineers choose this module for traction drives and medium-voltage grid converters where voltage margin and short-circuit withstand capabilities are critical. By utilizing specialized trench gate technology and an optimized emitter-controlled freewheeling diode, the module minimizes dynamic losses under cyclic loads.

6500V Blocking Voltage | 600A Continuous Collector Current | 10.2kV AC Isolation Voltage

  • Reduces thermal management overhead via high-conductivity substrate materials.
  • Enhances safety margins with an integrated 10µs short-circuit protection rating.

For designers evaluating the system-level impact of parasitic inductance on IGBT switching performance, the internal symmetrical layout of this device significantly reduces peak turn-off overvoltage transients.

Download Official FZ600R65KF2 Datasheet (PDF)

High-Voltage Reliability and Advanced Thermomechanics

The outstanding feature of the FZ600R65KF2 is its 6500V collector-emitter blocking capability. This rating enables simplified two-level converter topologies at high operating voltages. It avoids the component complexity associated with multi-level grid designs. The internal dies are protected by a high-grade silicone gel formulation. This gel provides stable dielectric performance and prevents surface creepage under high-humidity conditions.

Think of the isolation rating as a robust flood barrier. A higher barrier prevents dangerous electrical surges from breaking through and damaging the low-voltage control circuits. This protective barrier is backed by a 10.2 kV AC isolation test voltage. It ensures complete separation between the logic controls and the high-voltage power lines.

Thermomechanical stress is mitigated using an Aluminum Silicon Carbide (AlSiC) baseplate. The thermal expansion coefficient of AlSiC is closely matched to the ceramic isolation substrates. This thermal matching decreases mechanical fatigue on solder joints during continuous thermal cycles. It prevents module deformation and stabilizes the thermal resistance path over long deployment lifetimes.

Recommended Application Environments

The FZ600R65KF2 fits demanding power infrastructure settings. The parameters align with the following applications:

  • Railway Traction Drives: The AlSiC baseplate resists the high thermal and mechanical shock profiles of heavy rail systems.
  • Medium-Voltage Motor Drives: The 6.5 kV rating enables direct-to-grid industrial motor control without step-down transformer units.
  • Grid-Tie Inverters and HVDC: Exceptional isolation and low switching loss facilitate efficient power transfer in energy distribution networks.
  • Renewable Energy Converters: High short-circuit immunity ensures stability during transient load faults, protecting wind turbine systems.

Optimized for high-stress medium-voltage environments, the FZ600R65KF2 serves as a highly robust power block for applications demanding 6.5kV blocking capability.

Key Specifications Parameter Table

Parameter Group Specification Description Value
Absolute Maximums Collector-Emitter Voltage (VCES) 6500 V
Continuous DC Collector Current (IC) 600 A (at TC = 80°C)
Repetitive Peak Collector Current (ICRM) 1200 A (tp = 1 ms)
Electrical Characteristics Collector-Emitter Saturation Voltage (VCE(sat)) 3.20 V (Typ, Tvj = 25°C)
4.20 V (Typ, Tvj = 125°C)
Gate Charge (QG) 16.0 µC (VGE = -15 V to +15 V)
Short-Circuit Safe Operating Limit tpsc ≥ 10 µs (VGE ≤ 15 V, VCC = 4500 V)
Thermal Properties Thermal Resistance, Junction to Case (RthJC) 0.016 K/W (IGBT component limit)
Isolation Test Voltage (VISOL) 10.2 kV (RMS, f = 50 Hz, t = 1 min)

Engineer FAQ

How can we calculate short-circuit protection margins using the FZ600R65KF2 parameters?
The module guarantees a short-circuit withstand time (tpsc) of 10 µs under nominal gate bias (+15V) and an operational bus voltage of 4500V. For maximum system reliability, your gate driver should incorporate a fast de-saturation detection circuit. This aligns with standard short-circuit protection parameters to safely shut down the gate within 6 µs to 8 µs.

What are the benefits of the AlSiC baseplate in heavy industrial applications?
AlSiC provides a close thermal expansion coefficient match with the internal ceramic substrates. This minimizes physical shear on the solder interfaces. It drastically reduces the risk of thermal mounting failure or thermal resistance drift under continuous mechanical vibrations.

What mounting precautions prevent mechanical damage to the module housing?
Avoid excessive torque on both the power terminals and mounting tabs. Tighten all fasteners strictly within the limits specified in the datasheet. Using a calibrated torque wrench prevents package cracking and keeps contact resistance stable.

Summary

The FZ600R65KF2 offers a solid foundation for medium-voltage system design, combining a 6.5kV rating with high thermal and mechanical reliability. By choosing this module, engineering teams gain excellent insulation characteristics and thermal cycling resilience. This supports straightforward power layout designs in high-power power semiconductors applications, maintaining high performance under difficult operational conditions.